Hey, Joe, I use a Tuki Small Mic bag to carry my Relay G50 system (receiver, transmitter, antennas, cables, and spare batteries).  http://www.tukicovers.com/cart/index.php?main_page=product_info&cPath=7_72&products_id=233

I use a Vaultz yellow mesh bag to keep the antennas, cables, and spare batteries from scratching the transmitter and receiver.  http://www.amazon.com/gp/aw/d/B001CDD0X8/ref=aw_d_iv_office-products?is=l

I use a PowerPax StorACell SlimLine AA (moonshine) battery caddy to keep my Maha Energy PowerEx Imedion rechargeable batteries in check.  http://www.powerpax.net/SlimLine-AA-moonshine_p_66.html

http://www.mahaenergy.com/store/viewItem.asp?idProduct=426